/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import technicalServices.Database;
import technicalServices.SQLDatabase;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;
import technicalServices.*;

/**
 *
 * @author sa11
 */
public class ProcessNewUser extends HttpServlet {

    private String connURL = "jdbc:sqlserver://idasql-db.hb.se:56001;" + "databaseName=dbtht1117";///dbtht1117"; // ange databas namn här";
    private String userName = "dbtht1117";
    private String password = "panwer09";
    
    private String username = "";
    private String alias = "";
    private String requestedPassword = "";

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

        try {
            /* TODO output your page here*/
            /*
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ProcessNewUser</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet ProcessNewUser at " + request.getContextPath() + "</h1>");
            /**/
            if (!request.getParameter("password").equals(request.getParameter("passwordRetype"))) {
                out.println("<p>passwords does not match</p></body></html>");
                return;
            }
            username = request.getParameter("username");
            requestedPassword = request.getParameter("password");
            alias = request.getParameter("alias");
            initiateSQL(out);
            response.sendRedirect(("registerUser.jsp?userAdded=1"));
            /*
            out.println("</body>");
            out.println("</html>");
            /**/
        } finally {
            out.close();
        }
    }

    private void initiateSQL(PrintWriter out) {
        // driver and connection try catch
        Connection conn = null;
        Statement stmt = null;
        int kommentarsID = 1;
        try {
            Database db = new SQLDatabase(connURL, userName, password);
            if(!db.loadDriver()){
                out.println("<p>error at driver</p>");
            }
            if(!db.connect()){
               out.println("<p>error at connect</p>");
            }
            
            
            /*
            ResultSet rs = db.getResultSet();
            out.println("<p>after select</p>");
            if(rs == null){
                out.println("<p>rs is null</p>");
            }
            else{
                out.println("<p>rs is not null</p>");
            }
            if (rs.first() == false) {
                out.println("<p>username taken</p></body></html>");
                return;
            }
            /**/
            out.println("<p>inside initiate in middle</p>");
            if(db.executeUpdateSQL("INSERT INTO Anvandare VALUES('" + username + "', '" + alias + "', '" + requestedPassword + "');")){
                out.println("<p>user added</p>"); 
            }
            else{
                out.println("<p>username taken</p>");
                return;
            }
            out.println("<p>inside initiate at end</p>");
            /**/
        } catch (ClassNotFoundException ex) {
            out.println("error at driver");
        } catch (java.sql.SQLException ex) {
            out.println("username taken/sqlexception");
        } finally {
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
